cpp stringizing problem 1

["Markus F.X.J. Oberhumer" <markus@oberhumer.com>]

>Submitter-Id:  net-debian
>Originator:    Markus F.X.J. Oberhumer <markus@oberhumer.com>
>Organization:  none
>Confidential:  no
>Synopsis:      cpp 3.0 200010426 stringizing problem 1
>Severity:      serious
>Priority:      medium
>Category:      preprocessor
>Class:         rejects-legal
>Release:       3.0 20010426 (Debian prerelease) (Debian testing/unstable)
>Environment:
System: Linux laetitia 2.4.3 #1 Wed Apr 4 03:58:32 CEST 2001 i586 unknown
Architecture: i586

        
host: i386-pc-linux-gnu
build: i386-pc-linux-gnu
target: i386-pc-linux-gnu
configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,proto,objc --prefix=/usr
--infodir=/share/info --mandir=
/share/man --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib
--enable-long-long --enable-nls --without-x --without
-included-gettext --disable-checking --enable-threads=posix
--enable-java-gc=boehm --with-cpp-install-dir=bin --enable-objc-gc 
i386-linux
>Description:
        cpp 3.0 200010426 stringizing problem 1
>How-To-Repeat:
$ gcc-3.0 -c -Werror bug02.c
bug02.c:13:23: pasting ""_"" and ""foo"" does not give a valid preprocessing
token

----------------------------------------

$ cat bug02.c
/* Markus F.X.J. Oberhumer <markus@oberhumer.com>
 * gcc 3.0 20010426 (Debian prerelease) bug report:
 *
 *   cpp stringizing problem
 */

#if defined(__GNUC__)
#define ASM_NAME(x)     __asm__("_" ## #x)
#else
#define ASM_NAME(x)
#endif

extern void foo(void) ASM_NAME(foo);

int dummy = 0; /* avoid empty source file */
>Fix: